Home / 143,949.84-215,990.37-73,878.36

Finding the Fourth Proportional to 143,949.84, 215,990.37 and 73,878.36

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Solution

The fourth proportional to 143,949.84, 215,990.37 and 73,878.36 is: 110,851.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,949.84 : 215,990.37 = 73,878.36 : x
  2. Step 2: Convert to fraction form
    143,949.84/215,990.37 = 73,878.36/x
  3. Step 3: Cross multiply
    143,949.84x = 215,990.37 × 73,878.36
  4. Step 4: Simplify right side
    143,949.84x = 15,957,014,311.39
  5. Step 5: Solve for x
    x = 15,957,014,311.39/143,949.84
  6. Step 6: Final answer
    x = 110,851.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.